just1

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just1 - A Hitori Game Midlet

The just1 Midlet is a J2ME game providing Hitori puzzles for your java enabled mobile phone or PDA (check J2ME Device List. The game requires at least MIDP 1.0 and CLDC 1.0).

A Hirori puzzle is a grid of squares which are filled with numbers. At the beginning all numbers are not marked. The goal of the game is to paint out some numbers to fulfill the following three basic rules:

• Two black cells cannot be connected horiontal or vertical. Diagonal is allowed.
• In each row and each column of the grid no white duplicate numbers are allowed.
• All white cells needs to be connected orthogonally at the end. Diagonal is not enough.

For more information, explanation and basic rules check out Hitori.

Motivation

After creating 5ud0ku, just1 was the next upcoming puzzle we wanted to implement as a J2ME game. It also helped to extract certain base classes (File and Color selection, UI handling and language support) which we might use for upcoming projects.

Features

Current Version 1.1

• runs on mobile devices with java versions for at least MIDP 1.0 and CLDC 1.0
• game creator (puzzle size can be selected and depends on screen resolution)
• game editor and game solver
• supports pointer-devices (Stylus input on Smartphones/PDA)
• colored field-values (colors can be adjusted)
• autosave/load, load and save of games
• undo/redo mode
• solving time status display
• highscore
• helper: provide hints
• helper: check puzzle
• helper: signal conflicts
• helper: easy input (automatically paint neighbor cells of a black cell white)
• helper: easy solve (just need to mark black cells)

Web Demo

You can preview the game before downloading it to your mobile. Checkout the webdemo (Java Applet based).

User Manual

you will find instructions at http://wintermute.de/wap/just1.html

Upcoming/Open Issues

• currently none

License

just1 is distributed under the GNU General Public License. See LICENSE.txt

Download

Emailware

The game is Freeware, but we declared it emailware.
If you use it, please pass a short note to
Thanks!
The midlet and the sources can be redistributed according to the license information above.

Midlet Files

regular version (63k, runs on most phones, comes with english language set)

• just1.jad
• just1.jar

To download the game to your mobile via WAP, point your mobile's browser to http://wintermute.de/wap/just1/ .

Additionally you may download just1 at GetJar

getting the jar/jad to your mobile without WAP Download

• For Nokia devices you will need a program such as the Nokia PC Suite. At least S40 3rd Edition also allows transfer of jar file using standard infrared/bt uploads (tested on Nokia 6233).
• For Motorola devices with a Memory Card (SD Card) you may put the jad and jar into the kjava directory of the card (it is a hidden directory!). Then select 'install new' in 'Games and More'. Now the game should show up (it worked on a Motorola V980)
• On other devices it may be suitable to just transfer the file via any means (bluetooth, IR, cable) to your mobile

Java Sources

Download the sources at just1.src.zip. The archive contains all sources.

language translation

If you like to translate just1 to another language, you can do so by creating a new language file:

1. Create your own 'dict_language-id' and 'cdict_language-id' (e.g. dict_fr and cdict_fr) file using an existing e.g dict_en/cdict_en as a template
2. add the language-name and language-id to the lang file within just1.jar
3. pack the new dict files and the updated lang into just1.jar file
4. update jad for new jar file size (if needed)

You also can send the file to us() and I will create the packed game.

Rules for the language files are: Use UTF-8 encoding (no BOM Signature) and check for the characters '=' and '|' in your file, since both are used as separators.

The source-zip is not updated for new language additions.

Backlink

listing of just1 at Gruig !

Confirmed devices

As mentioned above, in general the midlet should run on any J2ME enabled device with MIDP 1.0 and CLDC 1.0 at least. Devices, such as K610im, which implement CLDC and DoJa cannot run the game.

Nevertheless, this list contains the confirmed devices.

• MTV 3.0 noir
• Nokia 6230i
• Nokia 6233
• Nokia 6610
• Nokia E60

Version History

V1.1

• Fix: game size can be change on new game, even after DisplaySolution was selected before
• Fix: hintdisplay does not scramble screen
• Fix: zero not allowed on input of own hitori puzzles any more

V1.0

• inital release